title: Head and neck metastases from occult abdominal primary site: a case report and literature review.
mesh_terms: D001650:Bile Duct Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000556:secondary*; D001653:Bile Ducts, Intrahepatic / Q000473:pathology; D001706:Biopsy; D018281:Cholangiocarcinoma / Q000175:diagnosis / Q000473:pathology / Q000556:secondary*; D003937:Diagnosis, Differential; D005260:Female; D006258:Head and Neck Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000556:secondary*; D006801:Humans; D008113:Liver Neoplasms / Q000175:diagnosis* / Q000473:pathology; D008198:Lymph Nodes / Q000473:pathology; D008207:Lymphatic Metastasis / Q000473:pathology*; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D009382:Neoplasms, Unknown Primary / Q000175:diagnosis* / Q000473:pathology; D014057:Tomography, X-Ray Computed